766976985 has 16 divisors (see below), whose sum is σ = 1363514880. Its totient is φ = 409054320.

The previous prime is 766976953. The next prime is 766976993. The reversal of 766976985 is 589679667.

766976985 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 766976985 - 2⁵ = 766976953 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2840521 + ... + 2840790.

It is an arithmetic number, because the mean of its divisors is an integer number (85219680).

Almost surely, 2^766976985 is an apocalyptic number.

It is an amenable number.

766976985 is a deficient number, since it is larger than the sum of its proper divisors (596537895).

766976985 is a wasteful number, since it uses less digits than its factorization.

766976985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5681325 (or 5681319 counting only the distinct ones).

The product of its digits is 34292160, while the sum is 63.

The square root of 766976985 is about 27694.3493333929. The cubic root of 766976985 is about 915.3645953634.

The spelling of 766976985 in words is "seven hundred sixty-six million, nine hundred seventy-six thousand, nine hundred eighty-five".